decoder_encoder

decoder_encoder/decoder_encoder.v

@@ -0,0 +1,30 @@
+/*
+    Decoder / Encoder
+*/
+
+module decoder_3bit (
+    input [2:0] in,
+    output [7:0] out
+);
+    assign out = 1 << in;
+endmodule
+
+module encoder_3bit(
+    input [7:0] in,
+    output reg [2:0] out
+);
+    always @(*) begin
+        out = 0;
+
+        casez(in) 
+            8'b1???????: out = 3'd7;
+            8'b01??????: out = 3'd6;
+            8'b001?????: out = 3'd5;
+            8'b0001????: out = 3'd4;
+            8'b00001???: out = 3'd3;
+            8'b000001??: out = 3'd2;
+            8'b0000001?: out = 3'd1;
+            8'b00000001: out = 3'd0;
+        endcase
+    end
+endmodule